package eu.flatworld.android.ontop.db;

import java.sql.SQLException;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.util.Log;

import com.j256.ormlite.android.apptools.OrmLiteSqliteOpenHelper;
import com.j256.ormlite.dao.Dao;
import com.j256.ormlite.support.ConnectionSource;
import com.j256.ormlite.table.TableUtils;

import eu.flatworld.android.ontop.Main;



/**
 * Database helper class used to manage the creation and upgrading of your database. This class also usually provides
 * the DAOs used by the other classes.
 */
public class DatabaseHelper extends OrmLiteSqliteOpenHelper {

	// name of the database file for your application -- change to something appropriate for your app
	private static final String DATABASE_NAME = "/sdcard/" + "ontop.db";
	// any time you make changes to your database objects, you may have to increase the database version
	private static final int DATABASE_VERSION = 1;

	// the DAO object we use to access the SimpleData table
	private Dao<Memo, Integer> memoDao = null;
	private Dao<ChecklistItem, Integer> checklistItemDao = null;

	public DatabaseHelper(Context context) {
		super(context, DATABASE_NAME, null, DATABASE_VERSION);
	}
	
	public void deleteDatabase(Context context) {
		Log.d(Main.LOGTAG, "Delete database");
		context.deleteDatabase(DATABASE_NAME);
	}

	/**
	 * This is called when the database is first created. Usually you should call createTable statements here to create
	 * the tables that will store your data.
	 */
	@Override
	public void onCreate(SQLiteDatabase db, ConnectionSource connectionSource) {
		try {
			Log.d(Main.LOGTAG, "Create database");
			TableUtils.createTable(connectionSource, Memo.class);
			TableUtils.createTable(connectionSource, ChecklistItem.class);
		} catch (SQLException e) {
			Log.e(Main.LOGTAG, "Can't create database", e);
			throw new RuntimeException(e);
		}
	}

	/**
	 * This is called when your application is upgraded and it has a higher version number. This allows you to adjust
	 * the various data to match the new version number.
	 */
	@Override
	public void onUpgrade(SQLiteDatabase db, ConnectionSource connectionSource, int oldVersion, int newVersion) {
		Log.d(Main.LOGTAG, "Ugradae database " + oldVersion + "," + newVersion);
		/*try {			
		} catch (SQLException e) {
			Log.e(DatabaseHelper.class.getName(), "Can't drop databases", e);
			throw new RuntimeException(e);
		}*/
	}

	public synchronized Dao<Memo, Integer> getMemoDao() throws SQLException {
		if (memoDao == null) {
			memoDao = getDao(Memo.class);
		}
		return memoDao;
	}

	public synchronized Dao<ChecklistItem, Integer> getChecklistItemDao() throws SQLException {
		if (checklistItemDao == null) {
			checklistItemDao = getDao(ChecklistItem.class);
		}
		return checklistItemDao;
	}

	/**
	 * Close the database connections and clear any cached DAOs.
	 */
	@Override
	public void close() {
		super.close();
		memoDao = null;
		checklistItemDao = null;
	}
}
